Table 2 Regression coefficients, relative risk and 95% credible interval from Bayesian spatial and non-spatial models of pneumonia cases in Bhutan, January 2010-December 2018.

From: Spatio-temporal patterns of childhood pneumonia in Bhutan: a Bayesian analysis

Model/variable

Coeff, posterior mean (95% CrI)

RR, posterior mean (95% CrI)

Model I (unstructured)

α (Intercept)

− 2.28 (− 2.59, − 1.32)

 

Age

2.658 (2.636, 2.680)

14.268 (13.957, 14.585)

Sex‡‡

− 0.120 (− 0.134, − 0.105)

0.887 (0.875, 0.900)

Mean monthly trend

− 3.43 × 10–3 (− 4.26 × 10–3, − 2.58 × 10–3)

0.9966 (0.9957, 0.9974)

Altitude (100 m)

1.32 × 10–5 (− 1.84 × 10–7, 2.62 × 10–5)

1.001 (1.000, 1.003)

Rainfall (10 mm)

7.67 × 10–4 (− 3.96 × 10–7, 1.54 × 10–3)

1.008 (1.000, 1.015)

RH (10%)**

− 1.25 × 10–3 (− 1.45 × 10–3, − 1.06 × 10–3)

0.988 (0.986, 0.989)

Maximum temp (°C)

1.31 × 10–2 (1.26 × 10–2, 1.37 × 10–2)

1.013 (1.013, 1.014)

Extra zero¥

0.169 (0.162, 0.177)

 

Heterogeneity

 Unstructured

1.694 (1.306, 2.149)

 

 Structured (trend)

0.188 (0.138, 0.238)

 

 DIC*

159,881.0

 

Model II (structured)

α (Intercept)

− 2.544 (− 2.658, − 2.431)

 

Age

2.659 (2.561, 2.758)

14.282 (12.949, 15.768)

Sex‡‡

− 0.120 (− 0.169, − 0.071)

0.887 (0.845, 0.932)

Mean monthly trend

− 3.42 × 10–3 (− 4.31 × 10–3, − 2.51 × 10–3)

0.9966 (0.9957, 0.9975)

Altitude (100 m)

1.34 × 10–5 (− 1.14 × 10–6, 2.77 × 10–5)

1.000 (1.000, 1.000)

Rainfall (10 mm)

6.80 × 10–3 (− 4.40 × 10–3, 1.81 × 10–2

1.007 (0.996, 1.018)

RH (10%)**

− 1.25 × 10–3 (− 1.54 × 10–3, 9.75 × 10–4)

0.999 (0.998, 0.999)

Maximum temp (°C)

5.93 × 10–2 (5.51 × 10–2, 6.35 × 10–2)

1.061 (1.057, 1.066)

Extra zero¥

0.169 (0.150, 0.189)

 

Heterogeneity

 Structured (spatial)

1.685 (1.291, 2.147)

 

 Structured (trend)

0.039 (0.030, 0.048)

 

 DIC

160,115.0

 

Model III (mixed)

α (Intercept)

− 2.54 (− 2.89, − 2.01)

 

Age

2.568 (2.597, 2.719)

14.268 (13.423, 15.165)

Sex‡‡

− 0.12 (− 0.151, − 0.09)

0.887 (0.860, 0.914)

Mean monthly trend

− 3.42 × 10–3 (− 4.26 × 10–3, − 2.56 × 10–3)

0.9966 (0.9957, 0.9974)

Altitude (100 m)

1.33 × 10–5 (− 3.55 × 10–7, 2.68 × 10–5)

1.013 (1.000, 1.027)

Rainfall (10 mm)

7.64 × 10–4 (− 1.78 × 10–4, 1.70 × 10–3

1.008 (0.998, 1.017)

RH (10%)**

− 3.33 × 10–2 (− 3.78 × 10–2, 1.92 × 10–2)

0.967 (0.963, 0.981)

Maximum temp (°C)

5.93 × 10–2 (5.62 × 10–2, 6.24 × 10–2)

1.061 (1.058, 1.064)

Extra zero¥

0.169 (0.157, 0.182)

 

Heterogeneity

 Unstructured

1.67 (1.29, 2.13)

 

 Structured (spatial)

0.32 (0.21, 0.48)

 

 Structured (trend)

0.08 (0.05, 0.13)

 

 DIC

159,983.0

 
  1. coeff coefficients, CrI credible interval, RR relative risk, DIC deviation information criterion.
  2. *Best-fit model.
  3. Coefficient.
  4. Reference- 5–14 years.
  5. ‡‡Reference-male.
  6. **RH- relative humidity lagged 3 months.
  7. ¥Probability of extra zero.